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    • 4. 发明授权
    • Center-of-gravity tilt-in-space wheelchair
    • 重心倾斜的轮椅
    • US07007965B2
    • 2006-03-07
    • US10403998
    • 2003-03-31
    • Todd BernatskyPhilip SchreiberTom WhelanWayne HansonSteven L. LindquistJerry HoutartRichard SchneiderAllen B. KillebrewMike Nordquist
    • Todd BernatskyPhilip SchreiberTom WhelanWayne HansonSteven L. LindquistJerry HoutartRichard SchneiderAllen B. KillebrewMike Nordquist
    • B62J1/00
    • A61G5/1075A61G5/045A61G5/1059A61G5/1062A61G5/107A61G5/12
    • A center-of-gravity tilt-in-space wheelchair includes a base, a seat for supporting an occupant, and tracks supporting the seat for selective seat movement relative to the base. Wheels are adapted to support the base relative to a supporting surface. The tracks serve as rolling or sliding surfaces that allow the seat to rotate with respect to the base. Each track has a constant-radius arc with a focal point that is adapted to be coincident with the center of gravity of the wheelchair occupant. A low-friction supports the base relative to the seat. The low-friction support may include low friction elements that mate with the tracks to support for the tracks. The support can be adjustable to permit the overall tilt angle range of the tracks to be adjusted. The wheelchair seat can be adjusted to maintain the focal point of the constant-radius arc of the tracks coincident with the center of gravity of the wheelchair occupant. The front and rear wheels can be adjusted fore and aft relative to the focal point. A coupling includes plates having upper ends operatively attached to one another with seat canes therebetween and lower ends releasably attached relative to the side tubes. The lower ends can be movable in a longitudinal direction relative to the side tubes while remaining operatively connected to the side tubes. A base frame can include side frames having an offset at a front end and a caster housing supported by the offset. The offset is directed up to minimize the height of the side frames and down to maximize the height.
    • 重心倾斜的轮椅包括基座,用于支撑乘员的座椅和支撑座椅的轨道,用于相对于基座的选择性座椅移动。 轮适于相对于支撑表面支撑底座。 轨道用作允许座椅相对于底座旋转的滚动或滑动表面。 每个轨道具有恒定半径的弧线,其焦点适于与轮椅乘员的重心一致。 低摩擦力相对于座椅支撑基座。 低摩擦支撑件可以包括与轨道配合以支撑轨道的低摩擦元件。 支撑件可以调节,以允许调整轨道的整体倾斜角度范围。 可以调整轮椅座椅,以保持轨道的恒定半径弧的焦点与轮椅乘员的重心相符。 前轮和后轮可以相对于焦点前后调节。 联轴器包括板,其上端可操作地彼此连接并具有位于其间的座杆,下端相对于侧管可释放地附接。 下端可以在相对于侧管的纵向方向上移动,同时保持可操作地连接到侧管。 基架可以包括在前端具有偏移的侧框架和由偏移支撑的脚轮壳体。 偏移被引导以最小化侧框架的高度并向下以最大化高度。
    • 6. 发明授权
    • Foldable wheelchair and axle plate therefor
    • 可折叠的轮椅和轴板
    • US07360781B2
    • 2008-04-22
    • US11246935
    • 2005-10-07
    • Philip H. SchreiberMichael KnopfErrol MarkleinSteven L. Lindquist
    • Philip H. SchreiberMichael KnopfErrol MarkleinSteven L. Lindquist
    • B62M1/14
    • A61G5/10A61G5/08A61G5/0825A61G5/1054A61G5/1067A61G5/1097A61G5/128
    • A foldable wheelchair comprises a substantially horizontally extending upper side frame member. An upper end of an axle plate is secured to the upper side frame member. An axle housing is secured to the axle plate. A cross brace is pivotally secured directly to the axle plate at the lower end of the axle plate. A wheel mount assembly comprises an axle sleeve mount having an internal thread. An axle sleeve has an external thread that is in threaded engagement with the internal thread of the axle sleeve mount. The axle sleeve has an internal bore that accepts a wheel axle. The internal bore is angled with respect to the axis of the external threads to provide camber to a wheel. The axle sleeve is adapted to provide lateral adjustment to the wheel by rotating the axle sleeve within the axle sleeve mount any number of complete revolutions. Moreover, the axle sleeve is adapted to provide toe in and toe out adjustment to a cambered wheel by rotating the axle sleeve within the axle sleeve mount a fraction of a complete revolution.
    • 可折叠轮椅包括大致水平延伸的上侧框架构件。 轴板的上端固定在上侧框架件上。 轴壳体固定到轴板上。 横梁在轴板的下端直接枢转固定在轴板上。 轮安装组件包括具有内螺纹的轴套安装件。 轴套具有与轴套安装件的内螺纹螺纹接合的外螺纹。 轴套有一个可以接受轮轴的内孔。 内孔相对于外螺纹的轴线成角度,以向车轮提供弯度。 轴套适于通过使轴套内的轴套旋转安装任何数量的整转而向车轮提供侧向调节。 此外,轴套适于通过使轴套内的轴套旋转安装一整圈的一部分来提供脚趾并弯曲到弧形轮的调节。